Joint for hollow building-blocks, tubes, &amp;c.



No. 639,569. Patented Dec. l9, I899. .1. HICKSON & 0. P. BUSHNELL.

JOINT FOB HOLLOW BUILDING BLOCKS, TUBES, 8L0.

. (Application filed A r. 26, 1899.) KN 0 Mo d e l mun L -II mun , lfiinesses anions Toss 67016066010 WM 05%)]? ll Z6 JOSEPH HIOKSON AND OSCAR I BUSHNELL, OF MOUNT GILEAD, OHIO.

JOINT FOR HOLLOW BUILDING-BLOCKS, TUBES, 80o.

SPECIFICATION forming part of Letters Patent No. 639,569, dated December 19, 1899.

Application filed April 26, 1899. Serial No. 714,510. (No model.)

To all whom it may concern.-

Be it known that we, JOSEPH HIOKSON and OSCAR P. BUSHNELL, citizens of the United States,residing at Mount Gilead, in the county of Morrow and State of Ohio, have invented a certain new and useful Improvement in Joints for I-Iollow Building-Blocks, Tubes, and the Like, of which the following is a specification.

Our invention relates to a new and useful improvement in joints for hollow buildingblocks, tubes, and the like, and has for its object to provide a simple and effective article of this description, whereby such blocks may be properly alined and anchored together.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which thisinvention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanyings, forming a part of this specification, in which-- Figure 1 is a section of the ordinary building-blocks having ourim proved joint-support in position therein, illustrating the manner of anchoring the blocks inposition; Fig. 2, aplan View of one of the j oint-su pports placed in position, and Fig. 3a view of the blank from which the joint-support is made.

In carrying out our invention as here embodied, A represents the blank, which is formed from a strip of metal, paper, or other suitable material, so grooved as to strengthen the same and form a recess B, for the purpose hereinafter set forth. This blank is cut as shown at O, or it might be crimped, and is bent at this point to produce an approximately-rectangular support, as clearly shown in Fig. 2, and also has tongues D, formed by the partial cutting out of sections of the blank, and when these tongues are bent outward in the completed supportthey. will bear against the end of the blocks or pipes, and thus hold the support in position while the mortar or jointing-cement is being applied for the setting of the next block, and regulate the space between the blocks or tubes, thus making the joints all of one width.

The side E is left somewhat longer than the other sides of the support and may be sprung inward, as shown in Fig. 2, so as to facilitate passing the support within the block, and then by forcing this side outward the support will be crowded tightly therein. This arrangement of the support provides for adjusting the same within certain limits to fit varying-sized openings in the blocks. In practice each support is set within the block to about half of its width and rests against the spacer .or tongue D. When the mortar, as indicated at F, is applied, it will fill into the space 13', formed by the grooving of the support, so that when the next block is passed over the protruding portion of the support it will be tied or anchored to the former block by the support and the mortar or joint material crowding into this space.

A wall built of hollow blocks having our joint-supports therein will be much more rigid and better exclude the water and cold than where the blocks depend only upon the mortar upon their meeting edges to hold them in place and make a tight joint.

Another advantage of our improvement is that in the laying of the blocks a protection is provided against the surplus mortar falling into the center of the blocks, as the projecting support prevents this and olenches the joint material.

In laying the last course of blocks a flexible roll should be run through the holes in the joint-supports in order that said supports may be sprung out to their proper places when the blocks are in position.

The cost of manufacture of a support in accordance with our improvement is exceedingly small, as it may be made entirely by automatic machinery, and consists principally in rolling, and thus adds but little cost to the construction of walls made from hollow blocks, and yet greatly increases their rigidity and makes a marked saving in time and labor.

Having thus fully described our invention, what we claim as new and useful is- 1. As a new article of manufacture, a joint support for hollow building-blocks consisting of a strip of material so rolled as to produce a central groove, sections in which a portion of the stock is cut, whereby the blank may be readily bent into shape, as specified.

2. In combination with hollow buildingblocks, tubes, &e., a jointsupport approximately rectangular or circular, having a central groove in which a head of mortar is formed when joining the blocks or tubes, as shown and described.

3. A joint-support for hollow buildingbloeks consisting of a strip of sheet metal so rolled and bent as to produce approximately a right angle having a central groove therein, and tongues bent outward, as and for the purpose set forth.

4. A jointsupport for hollow buildingbloeks consisting of a strip of sheet metal of approximately-rectangular shape, the ends of said support being left free, one end being longer than the other whereby the support may be crowded Within the block and made adjustable for varying sizes, as specified.

5. A joint-support for building-blocks, pipes and the like consisting of a strip of suitable material of suitable shape, the ends of said support being left free, and a tongue partially out from the material and bent outward to bear against the ends of the blocks or pipes, said strip being cut at suitable points so as to provide for its bending, as specified.

In testimony whereof we have hereunto affixed our signatures in the presence of two subscribing witnesses.

JOSEPH I-IICKSON. OSCAR P. BUSHNELL. Witnesses:

CLAUDE S. THOMAS, B. D. BUXTON. 

